Read More: Day/Night Terminator https://sos.noaa.gov/datasets/daynigh... “The shape of the terminator curve changes with the seasons. This difference is especially noticeable when the terminator curve from an equinox is compared to the terminator curve from a solstice.”
Can You Explain Why Earth Has Four Seasons? http://earthsky.org/earth/can-you-exp... “Some assume our planet’s changing distance from the sun causes the change in the seasons. That’s logical, but not the case, for Earth.”
Three Classes of Orbit https://earthobservatory.nasa.gov/Fea... “A satellite in a circular geosynchronous orbit directly over the equator (eccentricity and inclination at zero) will have a geostationary orbit that does not move at all relative to the ground. It is always directly over the same place on the Earth’s surface.”
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